Potassium Carbonate → 8-bromo-7-(4-chlorophenyl)-5-methyl-2-((2-methyl-6-(trifluoromethyl)pyridin-3-yl)methyl)-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one

HRID 2101379Notes

Reaction equation

[Br:1][C:2]1[C:3]2[N:4]([C:16](=[O:19])[NH:17][N:18]=2)[C:5]([CH3:15])=[CH:6][C:7]=1[C:8]1[CH:13]=[CH:12][C:11]([Cl:14])=[CH:10][CH:9]=1.Cl[CH2:21][C:22]1[C:23]([CH3:32])=[N:24][C:25]([C:28]([F:31])([F:30])[F:29])=[CH:26][CH:27]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C=O)C.O>[Br:1][C:2]1[C:3]2[N:4]([C:16](=[O:19])[N:17]([CH2:21][C:22]3[C:23]([CH3:32])=[N:24][C:25]([C:28]([F:31])([F:29])[F:30])=[CH:26][CH:27]=3)[N:18]=2)[C:5]([CH3:15])=[CH:6][C:7]=1[C:8]1[CH:9]=[CH:10][C:11]([Cl:14])=[CH:12][CH:13]=1

Participants

Conditions

Temperature: 80 °C

Procedure

To a solution of 8-bromo-7-(4-chlorophenyl)-5-methyl-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (42 mg, 0.124 mmol), and 3-(chloromethyl)-2-methyl-6-(trifluoromethyl)pyridine (39 mg, 0.186 mmol) in anhydrous DMF (0.5 mL) was added anhydrous potassium carbonate (34.6 mg, 0.25 mmol). The resulting suspension was stirred under argon at 80° C. for 1 h. After cooling to room temperature, the reaction mixture was diluted with water (10 mL). The resulting precipitate was filtered, washed with water, and dried in a vacuum oven at 60° C. for 16 h to afford 56 mg (89%) of the title compound as an off-white solid. HPLC/MS: retention time=4.15 min, [M+H]+=512.2.

Workup

temperatureAfter cooling to room temperature
filtrationThe resulting precipitate was filtered
washwashed with water
customdried in a vacuum oven at 60° C. for 16 h

Sources & evidence

ORD record: ord-a49f26aff14b42d19b65df6cfa345e11
Source dataset: uspto-grants-2009_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07572808B2

Reaction notes

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